Elektrické ochrany bloku VVER 440
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Vysoká škola báňská – Technická univerzita Ostrava
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Abstract
The thesis is focused on the electrical protection of the VVER 400 unit at Dukovany.
The content of the thesis is a general understanding of the principle of operation of electrical protection, its technical design and description of the different types used in these systems. The work also includes the design of a new protection system that better reflects the modern requirements for reliability and protection of the Dukovany nuclear power plant units. In addition, the calculation of minimum and maximum short-circuit currents is also performed, which serves as a basis for the sizing and setting of protection.
The results of the thesis could serve as a basis for the modernization of electrical protection.
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Electrical protection, fault conditions, protection members, reliability, selectivity, backup, instrument transformers, short circuit protection, ground fault protection, excitation protection, block transformer, turboalternator, self-consumption transformer.